Weighing-machine.



No. 813,972. PATENTED FEB. 27, 1906. H. B. HIXSON.

WEIGHING MACHINE.

APPLICATION FILED MLILM. 1905.

2 SHEETS-SHEET 1.

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No. 813,972. PATENTBD PEB. 27, 1906.

H. B. HIXSON.

WEIGHING MACHINE.

APPLIOATION FILED HARM. 1905.

2 SHEETS-SHEET 2.

Witnesses WW y ttornegs w k y UNITED lsTATns PATENT OFFICE.

WEIGHING-MACHINE.

Specification of Letters Patent.

Patented Feb. 27, 1906.

Application filed March 24,1905. Serial No. 251,858.

To a/ZZ whom, it 1v1/wy concern.-

Be it known that I, HIRAM BURNETT HIX- sON, a citizen of the United States, residing at Hillsboro, in the county of Henry and State of Iowa, have invented a new and useful Weighing-Machine, of which the following is a specification.

This invention relates to weighing-machines, and it has particular reference to an improved automatic weighing-machine capable of being applied to and used in connection with an elevator or conveyer, such as the elevator of a threshing-machine, for the purpose of weighing the material passing over the discharge-spout of such elevator or conveyor.

The invention has for its object to simplify and improve the construction and operation of this class of devices; and with these and other ends in view, which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts, which will be hereinafter fully described, `and particularly pointed out in the claims.

In the accompanying drawings has been illustrated a simple and preferred form of einbodiment of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that the right is reserved to any changes, alterations, and modifications to which recourse may be had within the scope of the invention and without departing from the spirit or sacrificing the efiiciency of the same.

In said drawings, Figure 1 is a perspective view of the improved weighing-machine, showing the same mounted in position for operation. Fig. 2 is a side elevation showing the side opposite to that shown in Fig. 1 and a portion of the feed-spout bein broken away. Fig. 3 is a side elevation similar to Fig, 2, but illustrating the bucket in dumping or discharging position, a portion of the bucket having been broken away. Fig. 4 is a sectional detail view taken through the shaft having the locking member and the friction-wheel. Fig. 5 is a perspective detail view of the gate.

Corresponding parts in the several figures are indicated throughout by similar characters of reference.

The weighing-machine of this invention is intended. to be used in connection with a feedspout arranged for the passage of the mate- A rial which is to be weighed. This feed-spout 1 has in the drawings been shown as the ldischarge-spout of an elevator, the casing of which includes two legs 2 2. The head of the elevator-casing is provided with bearings for a transverse shaft 3, which is driven by any suitable means. (Not shown.) This shaft will naturally be utilized for the purpose of supporting the upper end of the endless conveyer of the elevator; but this is not part of the present invention and has not been illustrated.

4 4 are the side members of the frame, which is clamped or otherwise suitabbly secured upon the elevator casing, although some other suitable support may be provided for said frame members when desired. The frame members 4 4 are provided with downwardly-extending brackets 5 5, each provided with an orifice 6 for the knife-edge bearing 7 of a scale-beam 8, carrying an adjustable weight 9. The front ends of the scale-beams 8 are provided with boxes 10, forming bearings for a shaft 11, carrying the bucket 12. The bucket 12 consists of a cylindrical receptacle mounted concentrically upon the shaft 11 and provided with aA diametrical partition 13, whereby it is divided into two compartments of equal size, each of said compartments being provided with an opening 14, which isdisposed adjacent to and in advance of the partition 13, the words in advance being used with reference to the direction of -rotation of the bucket.-

One of the frame members 4 is provided with a forward extension or bracket 15, supporting a boX 16, in which is ournaled a shaft 17, having a pulley 18, which is connected by a belt 19 with a pulley 20 upon the driven shaft 3. The bracket 15 is suitably spaced from the adjacent side of the bucket 12, which latter is provided with a concentrically-disposed friction-rim 21, provided at diametrically opposite -sides with indentations 22, at the inner ends of `which additional but smaller recesses 23 are formed. The indentations 22 and recesses 23 are preferably segmental and concentric with each other, and said indentations and recesses have been shown as being disposed in. alinement with the diametrical partition 13 in the bucket. The shaft 17 carries at its inner end a loose pulley 24, adapted for engagement with the recesses 23. Said shaft also carries a fixed friction-wheel 25, which when the pulley 24 is in engagement with one of the recesses 23 is loosely accommodated in the adjacent recess 22. In order to insure steadiness of motion, an additional bearing for the shaft 17 may be formed in an auxiliary extension 26 of the frame member 4, having the forwardlyextending bracket 15.

A gate 2S is provided having two side members or supporting-arms 29, which are pivotally mounted, as upon a cross-bar 30, supported upon the feed-spout 1. One of the side members 29 is provided with a rearward-extending arm 31, which is connected by means of a link 32 with one of the scalebeams 8.

In operation the bucket is supported in receiving position by means of the pulley 24, engaging one of the recesses 23, the bucket being thereby locked against rotation, this engagement taking place as long as the bucket is overbalanced by the weights 9 upon the scale-beams. Vhen the bucket is in this position, one of the openings 14 will be in alinement with the discharge-mouth of the feed-spout, and the gate 2S will be withdrawn, as shown in Figs. l and 2, to permit material to pass unobstructedly from the feed-spout into one of the compartments of the bucket. Wvhen a quantity of material has entered said compartment sufficient to overbalance the weights 9, the scale-beams will tilt upon their pivots, thereby closing the gate 2S and releasing the pulley 24 from locking engagement with the recess 23 and likewise disengaging the friction-wheel 25 from the indentation 22. The material contained in the bucket being all or nearly all at one side of the vertical diameter of said bucket, the latter will be instantly tilted by the weight of said material which is discharged through the opening 14 into a con veyer or receptacle. (Not shown.) As the material is being discharged the weight of the bucket will Aagain be overbalanced by the weights 9, and said bucket 'will be elevated until the friction-rim 21 comes into engagement with the friction-wheel 25 upon the shaft 17, which is constantly driven from the shaft 3. The rotation of the bucket will thus be positively continued until one half-revolution has been made, when the friction-wheel 25 and pulley 24 will encounter` an indentation 22 and a recess 23 and pass into engagement therewith, the bucket being lifted into locking engagement by the weights 9. By the same movement of the scale-beams which restores the bucket to locking engagement the gate will be thrown open for the passage of material into the compartment of the bucket, the aperture of which is now in alineinent with the discharge-opening of the feed-spout.

From the foregoing description, taken in connection with the drawings hereto annexed, the operation and advantages of this invention will be readily understood by those skilled in the art to which it appertains.- The construction of the device is simple and inexpensive. It may be readily applied to the elevator-spouts of threshing-machines or to conveyers of any kind for the purpose of measuring the material passing therethrough, its operation being, as will be readily seen, entirely automatic. It will be observed that the contents of the bucket is discharged by its own weight and that the friction mechanism herein described is employed for the only purpose of restoring the bucket to its normal receiving position, Where it is securely locked by the mechanism described, to be tripped only when the proper quantity of material has passed into the bucket.

Having thus described the invention, what is claimed is- 1. 1n a weighingmachine, a tilting beam, a bucket supported thereby for rotation and having a diametrical partition and apertures adjacent thereto, a friction-rim connected with said bucket and having peripheral indentations and recesses, and an independently-supported shaft having a fixed and a loose pulley disposed for engagement with said rim and indentations and with said re cesses respectively.

2. In a weighing-machine, a tilting beam, a bucket supported thereby for rotation and having a partition and diametrioally opposite apertures, a friction-rim connected with said bucket and provided with diametrically opposite indentations and with relatively small recesses adjacent to said indentations, an independently-supported driven shaft, a loose pulley upon said shaft adapted for locking engagement with the small recesses, and a friction-wheel fixed upon said shaft for engagement with the friction-rim.

3. In a weighing-machine, a tilting beam, a bucket supported for rotation thereon, a shaft supported independently of the bucket and carrying a stop member, stop-engaging means upon the bucket, a friction* wheel upon the shaft, friction means upon the bucket adapted for engagement with said friction-pulley to be thereby driven when the bucket is depressed until the stop means upon the shaft and the bucket enter into engagement.

4. In a weighing-machine, a tilting beam, a bucket supported for rotation thereon, said bucket having a transverse partition and diametrically opposite apertures adjacent to the ends of said partition, adjustable weights upon the tilting beam, means for locking the bucket in position when overbalanced by the weights, and friction means for restoring said bucket to locked position after being tripped and partially rotated by the weight of material contained therein.

5. In a weighing-machine, a tilting beam, a bucket supported for rotation thereon and having a locking-recess, an independently- IOO IOS

supported locking member disposed for engagement with said recess, friction means for rotating the drum when disengaged from the locking member, a pivotally-supported gate, and means for actuating said gate when the bucket is tripped out of engagement with the locking member.

6. In a weighing-machine, a tilting beam, a bucket supported for rotation thereon and having a locking-recess, said bucket being provided with an aperture for the admission of material to be weighed, a feed-spout, an independently-supported locking member disposed for engagement with the locking-recess of the drum, friction means for rotating gatev with the tilt'ing beam to actuate said .gate when the bucket is tripped out of engagement with the locking member.

In testimony that I claim the foregoing as my own I have hereto aIiXed my signature in the presence of two witnesses.

HIRAM BURNETT HIXSON.

Witnesses:

J. E. BENN1 W. A. SMUTZ, 

